It just goes to show you. I am often thrown off by indirection but not this time. Once I figured out that it referred to a city on an island I found it easy. I suppose NYC is not an awful guess if you think the city is confined to Manhattan Island, which it is not. And I also don’t consider Victoria, B.C. a terrible response if you have never been anywhere near it. I have visited it and knew it wasn’t that populous. Wikipedia confirms that, listing the population at only 80,000 in the actual city and 350,000 in the metro area. But Havana occurred to me immediately.